Computers & Structures, Inc. is proud to announce the release of SAP2000 V14.
The innovative enhancements in this version are categorized below. This fully
integrated product for the modeling, analysis and design of structures
continues to be available in three levels: Basic, Plus and Advanced.

Please
contact (+88) 01714 054 837 for more information.

Nonlinear and Pushover

• A nonlinear, layered shell element using a
directional material model has been added for
pushover analysis of shear-wall structures and similar applications. A
Quick-Start option is
provided for easy modeling of reinforced concrete sections. Show me Nonlinear Shearwall capabilities

• Plot functions have been added for shell layer
stresses.
• Frame hinges for Section Designer sections “To be
Designed” have been enhanced to use the
designed amount of rebar when available.
• Section Designer has been enhanced for the display of
fiber-model PMM surface.
• The default material properties for concrete have
been modified to improve
convergence behavior.
• The tangent stiffness used for the iteration of fiber
hinges and multi-linear links has been
changed to improve convergence.

Dynamics

• Material-based damping is now available for linear
and nonlinear direct-integration
time-history
analysis.
• Material-based damping is now available for
steady-state and PSD analysis.
• Stiffness-proportional damping now uses initial
stiffness instead of tangent stiffness to
improve the consistency of results and convergence behavior.
• The rigid-response calculation in response-spectrum
analysis has been enhanced for NRC
and general use.
• Base reactions for response-spectrum and modal
time-history analysis have been improved
for springs and grounded link supports to better capture missing-mass
effects.
• Base reactions no longer include constraint forces at
restraints, for consistency.

• Fully automated bridge design check per AASHTO Guide
Specifications for LRFD
Seismic Bridge Design 2009 has been implemented, including pushover analysis
when required.
• Automated handling of secondary prestress force has
been implemented for the AASHTO
LRFD 2007 superstructure flexural design check for prestressed concrete
box girder sections.
• The AASTHO/USGS 2007 response-spectrum function has been added.
• Variable girder spacing along the length of the
bridge superstructure is now available.
• Variable reference-point location along the length of
the bridge superstructure is
now available.
• Alignment of shell local axes in generated bridge
models has been enhanced.
• The longitudinal discretization of bridge models is
now more uniform in complex models.
• Tendons modeled as elements now allow elastic, creep,
shrinkage, and steel-relaxation
losses to be directly specified.
• The displacements for constrained joints in staged construction are no longer updated for
deflection until they are actually added to the model.

New Design Code Related Enhancements

• Eurocode-2 2004 concrete frame design added, without
seismic provisions.
• Eurocode-3 2005 steel frame design added, without
seismic provisions.
• Australian concrete frame design per code AS
3600-2001 added, including
seismic provisions.
• Multiple enhancements made for Indian concrete frame
design per code IS 456-2000.
• Multiple enhancements made for Chinese 2002 concrete
frame design.
• Multiple enhancements made for Chinese 2002 steel
frame design.
• Auto-lateral loads added for Eurocode: Wind, Seismic,
and Response-spectrum.
• Auto-lateral loads added for Australia: Seismic and
Response-spectrum.
• Auto-lateral loads added for New Zealand: Seismic and Response-spectrum.
• Other Enhancements to the Graphical User Interface (GUI)
Multiple enhancements have been
made to the graphical
display for clarity and speed.
• Multi-stepped static analysis of Bridge Live loads
acting on frame elements is now
available in
Plus/Advanced levels without the Bridge license for
modeling crane loads, footfall, etc.
• Single-stage construction cases starting from zero
are now available in Plus/Advanced
levels
without the Staged-construction license for modeling separate
gravity and lateral
configurations, different support conditions, etc.
• The import of StruCAD*3D data files is now available.
• New and updated API functions have been implemented.

• The capability to export a slab model to SAFE V12 has been implemented. This will be supported by SAFE V12.2 when it is released.

• Detailed design checking has been implemented for multi-cell prestressed-concrete
box-girder bridge superstructures according to the “AASHTO LRFD 2007” code using
Live-Load Distribution Factors. This is in addition to the whole-section design previously
released. Design checks are available for stress, flexural capacity, and shear capacity using
MCFT (modified compression field theory).

• Concrete frame design has been implemented using the AASHTO LRFD 2007” code.

• Significant speed improvements have been made to the generation of AASHTO/Caltrans
frame hinges for pushover analysis.

• General improvements have been made to the automated bridge seismic design feature.

• The concrete U-girder frame section can now also be used to model steel tubs in the
Bridge Modeler. Each section can be supported by a single bearing at the center, or two
bearings at the edges of the girder.

• The modeling of steel-girder diaphragms for steel girder bridges has been improved to provide better support for the lower flange.

• Automated wind lateral loading for Australia and New Zealand has been implemented according
to the 2002 AS/NZS 1170.2 code.

• The Norwegian national parameters have been implemented for auto seismic loading according
to the “Eurocode 8” code.

• The API 4F automated wind load has been enhanced to include a shielding factor.

• Steel frame design for the “NORSOK N-004” code, including punching checks, has been
added to the Offshore module. The design of non-tubular sections is in accordance with
Eurocode 3-2005 with the Norwegian National Annex.

• The Norwegian national parameters have been implemented for concrete frame design using
the “Eurocode 2-2004” code and steel frame design using the “Eurocode 3-2005” code.

• The 3-D rotation command in the graphical user interface has been improved for working in zoomed-in regions.

Significant New Features

• The CQC3 method of directional combination has been added as an option for
response-spectrum load cases.

• The Singapore National Annex to Eurocode 2 (NA to SS EN 1992-1-1 : 2008) has been
implemented for concrete frame design using “Eurocode 2-2004”.

• Snow loads are now included in the automatic load combinations that are created for
concrete
design using codes "ACI318-02/IBC2003" and "ACI318-05/IBC2006". The
documentation has been updated accordingly.

• The design load combinations created by the program for steel frame design code
"CAN/CSA-S16-01" now include notional loads, if any have been defined.

• The shear design for “Eurocode 2 2004” has been enhanced to optimized for angle “theta” in
Section 6.2.3 of the code.

• The identification of lateral load cases (seismic or wind) has been improved for nonlinear
cases which may contain these loads. This affects the increase in allowables for some
design codes.

• The design preferences for concrete, steel, cold-formed steel, and aluminum design have
been
enhanced to provide more control for the creation of internal design load combinations
involving nonlinear and staged-construction static load cases.

• User-defined frame hinges can now be assigned to any frame section or any material.
Previously, hinges could only be assigned to certain known section types, such as
rectangular and circular concrete sections; steel pipes, tubes, and wide-flange sections;
and Section-Designer sections.

• Displayed plot functions have been enhanced by adding the ability to plot forces for section
cuts that have been defined using quadrilateral cutting planes. Previously only forces for
sections cuts defined from groups could be displayed as plot functions.

• When displaying mode shapes graphically, the modal frequency is now displayed as well as
the modal period.

• Improvements have been made to nonlinear direct-integration time history analysis to improve
its speed and convergence.

• Three new options are now available for dividing frame objects using the command Edit > Edit
Line > Divide Frames. They are (1) Divide at a specified distance from the I-end of the frame,
(2) Divide at the intersection with a coordinate plane in the current coordinate system, and (3)
Divide at the intersection with visible grid planes in the current coordinate system.

• An enhancement has been made to the graphical user interface so that the view no longer
zooms out after certain operations, such as showing selection only, performing editing
operations like deletion, and returning from the Bridge Modeler.

• The import and export of IFC files has been updated to include Schema 2x2, 2x3, and
2x3_TC1, including the import/export of sections properties.

• The ability to export physical objects to IGES files has been added. Previously all objects
were exported as FEM entities. Now you can choose either option. If you export as FEM,
loads and properties are also exported. If you export as physical objects, only geometrical
line and surface entities will be created, but properties and loads will not be exported.

• A new option to export a Perform3D Structure has been added. Most geometry, material
and section properties, restraints, diaphragm constraints, groups, loads, and load cases
are exported for frame and shell elements. Corresponding Perform3D members are created
depending on the properties and assignments present on the individual SAP2000 members.
Detailed hinge properties and other Perform3D-specific features must be defined
in Perform3D.

• The Open API function that hides the GUI now also turns off the drawing functions for
increased execution speed.

Significant enhancements included in SAP2000 v14.2.2:

• Steel-frame design has been implemented for the Australian design code "AS 4100-1998".

• The National Annex parameters for Sweden, Finland, and Denmark have been added for
concrete frame design per code "Eurocode 2-2004" and for steel frame design per
"Eurocode 3-2005".

• The sign of all results for hyperstatic load cases has been reversed at the request of
several users.

• The installation has been changed so that it is no longer necessary for users to use
the
command "Run As Administrator" the first time they execute SAP2000 after updating to
a
new version of the program if they uninstall the previous version first.

Significant enhancements included in SAP2000 v14.2.3:

• The program level (Advanced, Plus, Basic) can now be chosen when starting the program
using a command-line option.

• New Quick Materials have been added for common Indian steel, concrete, and rebar
material properties.

• The length effects for the uniform loads of the British standard HA vehicle (BD-3701)
have been updated to the latest edition of the code.

• The export to CIS/2 has been enhanced so that the resulting data files can be read by
SDS/2, and now includes all frame offsets.

Significant enhancements included in SAP2000 v14.2.4:

• Concrete frame design has been enhanced to improve the smoothing of P-M-M interaction
surfaces in those rare cases where they become non-convex due to kinks in the P-M curves.

• A new design overwrite has been added for steel frame design using the "Eurocode 3-2005"
code. You may now use the "Is Rolled Section" parameter to indicate whether the member
is rolled or welded. The assignment as rolled or welded affects the b/t ratio and therefore
may affect the section classification. It may also affect the shear-area calculation.

• The limit on the number of nodes (joints) allowed for exporting a model to a SASSI file has
been increased from 9999 to 99999. The exported files are still compatible with the older format
if fewer than 10000 nodes are exported.